Dark matter galaxy

[PB666]

[url]http://earthsky.org/space/a-nearby-dark-matter-galaxy-triangulum-ii?[/url]

I was trying to find a clever title for this thread, but there is nothing really clever. A dark matter galaxy is an oxymoron. If stars are circling a core, then its a galaxy. The claim is that the relative mass is much higher than the visual would predict, based on estimating the velocity vectors of marker stars.

[PB666]

[quote name='llanthas']Occam's razor is gonna come down hard on this. Just sayin'...[/QUOTE]
black holes?

[Stargate525]

Isn't dark matter just... matter?

I mean, if the galaxy's made up of a bunch of dead stars and dark planets, they couldn't see it either.

[fredinno]

[quote name='Stargate525']Isn't dark matter just... matter?

I mean, if the galaxy's made up of a bunch of dead stars and dark planets, they couldn't see it either.[/QUOTE]

But wouldn't regular matter also be attracted to it, causing the galaxy to not be "Dark"?

[Findthepin1]

...ALIENS :D

Lol kidding lol i troled ([I]sic[/I]) you lol

Seriously, though, it's possible the core is just very large. I simulated a galaxy collision in Universe Sandbox 2 and it left both black holes with nearly no stars orbiting each. The mass of the cores didn't change of course. It could also have formed very massive, or it used to be larger and something sapped the stars of their orbital kinetic energy and they became part of the black hole. Occam's razor, as was said. Edited November 23, 2015 by Findthepin1

[EdFred]

I'm fairly convinced that dark matter is just us detecting matter/energy from dimension 5 and up.